
/**
 * 获取uuid
 * @returns {string}
 */
function guid() {
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
        var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
        return v.toString(16);
    });
}

/**
 * 从url中获取请求前缀
 * @param {string} url
 * @returns {string} 前缀
 */
function getUrlPrefix(url) {
    return url
    .split('/')[0] || url
    .split('/')[1] || '/'
}


module.exports = {
    guid,
    getUrlPrefix,
}